Railo 4.2 Reference
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Object Method String.listContains

Determines the index of the first list element that contains a specified substring. Returns the index of the first list element that contains substring. If not found, returns zero.
String.listContains(string substring,[string delimiters,[boolean includeEmptyFields,[boolean multiCharacterDelimiter]]]):number


The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
substring string  Yes the string to search in the list
delimiters string  No Characters that separate list elements. The default value is comma.
includeEmptyFields boolean  No if set to true, empty values are included as well
multiCharacterDelimiter boolean  No specifying whether the delimiters parameter specifies a multi-character delimiter. If this parameter is true, the delimiters parameter must specify a single delimiter consisting of multiple characters. This parameter enables the ListToArray function to convert a list such as the following to an array of color names: red:|orange:|yellow:|green:|blue:|indigo:|violet.